$105 Cheap Flights from Des Moines (DSM) to Baltimore (BWI)

View $105 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Des Moines International Airport (DSM) to Baltimore Washington Intl. Airport (BWI)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Des Moines to Baltimore (DSM-BWI)

Prices were available within the past 7 days and start at $105 for one-way flights and $204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Sep 3 - Wed, Sep 10
DSM
Des Moines
BWI
Baltimore
$204 Roundtrip, found 5 hours ago
$204
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Sep 3 from Des Moines to Baltimore, returning Wed, Sep 10, priced at $204 found 5 hours ago
American Airlines
Wed, Sep 3 - Wed, Sep 10
DSM
Des Moines
BWI
Baltimore
$207 Roundtrip, found 5 hours ago
$207
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Sep 3 from Des Moines to Baltimore, returning Wed, Sep 10, priced at $207 found 5 hours ago
Southwest Airlines
Wed, Oct 8 - Wed, Oct 15
DSM
Des Moines
BWI
Baltimore
$209 Roundtrip, found 3 hours ago
$209
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Wed, Oct 8 from Des Moines to Baltimore, returning Wed, Oct 15, priced at $209 found 3 hours ago
American Airlines
Wed, Oct 8 - Wed, Oct 15
DSM
Des Moines
BWI
Baltimore
$209 Roundtrip, found 3 hours ago
$209
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 8 from Des Moines to Baltimore, returning Wed, Oct 15, priced at $209 found 3 hours ago
Southwest Airlines
Wed, Sep 3 - Wed, Sep 10
DSM
Des Moines
BWI
Baltimore
$210 Roundtrip, found 5 hours ago
$210
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Sep 3 from Des Moines to Baltimore, returning Wed, Sep 10, priced at $210 found 5 hours ago
Southwest Airlines
Wed, Dec 10 - Wed, Dec 17
DSM
Des Moines
BWI
Baltimore
$211 Roundtrip, found 6 days ago
$211
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Dec 10 from Des Moines to Baltimore, returning Wed, Dec 17, priced at $211 found 6 days ago
American Airlines
Wed, Oct 8 - Wed, Oct 15
DSM
Des Moines
BWI
Baltimore
$212 Roundtrip, found 3 hours ago
$212
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 8 from Des Moines to Baltimore, returning Wed, Oct 15, priced at $212 found 3 hours ago
Southwest Airlines
Wed, Oct 8 - Wed, Oct 15
DSM
Des Moines
BWI
Baltimore
$214 Roundtrip, found 3 hours ago
$214
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Wed, Oct 8 from Des Moines to Baltimore, returning Wed, Oct 15, priced at $214 found 3 hours ago
Delta
Wed, Sep 3 - Wed, Sep 10
DSM
Des Moines
BWI
Baltimore
$222 Roundtrip, found 5 hours ago
$222
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Sep 3 from Des Moines to Baltimore, returning Wed, Sep 10, priced at $222 found 5 hours ago
Frontier Airlines
Thu, Oct 16 - Sun, Oct 26
DSM
Des Moines
BWI
Baltimore
$248 Roundtrip, found 5 days ago
$248
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Oct 16 from Des Moines to Baltimore, returning Sun, Oct 26, priced at $248 found 5 days ago

Find the cheapest month to fly from Des Moines (DSM) to Baltimore (BWI)

February is typically the cheapest month to fly

From $148 - $646 per traveler.

Graph displaying average flight prices per month

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Average driving time to city center is 57 minutes. Flights from $335
DCA
Ronald Reagan Washington National
Average driving time to city center57 min
Flights from $335
Flights from Des Moines (DSM) to Baltimore (BWI)
Origin airport
Des Moines Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$204
Distance
907 mi

Des Moines to Baltimore Flights

The cheapest times to fly from Des Moines to Baltimore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Des Moines to Baltimore are during the month of September. You can find some of the cheapest flights from Des Moines to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Des Moines to Baltimore

Sunday is one of the best days to book for cheap flights from Des Moines to Baltimore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Des Moines to Baltimore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Des Moines to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $105 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Des Moines to Baltimore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Des Moines to Baltimore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Get a cheap one-way flight from $105 or cheap return flight from $204 from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Planning your trip for September is a great way to save, as it's the cheapest month for flights between DSM and BWI. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from DSM to BWI. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to take a flight with a layover when traveling from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from DSM to BWI?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To avoid potential delays on the Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Baltimore from Des Moines Intl. Airport (DSM)?
Browse your flight options from Des Moines Intl. Airport (DSM) to Ronald Reagan Washington National Airport (DCA). This is the only Baltimore airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until right before your break to book a flight from DSM to BWI often results in higher prices. While it's possible to find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for a better chance of scoring a bargain.
Is it cheaper to book a DSM to BWI flight and hotel package?
You'll generally save money by booking a DSM to BWI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your preferred flights and accommodations, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Des Moines Intl. Airport (DSM) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you booked your DSM to BWI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Explore a world of travel with Expedia

*Available to One Key members.